C#等待多线程报错WaitAll for multiple handles on a STA thread is not supported

 在开发winform时，碰到过必须把Main设置成MTA thread方式，但有时却有些程序不支持使用的情况，如剪贴板，于是乎使用以下方法解决
 Thread t = new Thread(new ThreadStart(Method));

t.SetApartmentState(ApartmentState.STA);

t.Start();
 
即通过设置为ApartmentState.STA达到解决目的。
后来却碰到Winform中的AlloDrop设置为True时，出现下以错误
WaitAll for multiple handles on a STA thread is not supported
似乎还是得标识Main为STAThread方式。因此只好寻求反向解决方式，经过一番折腾使用以下办法得到解决，
有如如释重负

private void WaitAll(WaitHandle[] waitHandles) {

  if (Thread.CurrentThread.ApartmentState == ApartmentState.STA) {

    // 使用foreach，在多线程中等待每一个句柄

    foreach(WaitHandle myWaitHandle in waitHandles) {

      WaitHandle.WaitAny(new WaitHandle[]{myWaitHandle});

    }

  }

  else {

    WaitHandle.WaitAll(waitHandles);

  }

}

转载 http://www.cnblogs.com/jes_shaw/archive/2009/06/26/1511505.html